/******************************************************************************
 * Product: Adempiere ERP & CRM Smart Business Solution                        *
 * Copyright (C) 1999-2006 ComPiere, Inc. All Rights Reserved.                *
 * This program is free software; you can redistribute it and/or modify it    *
 * under the terms version 2 of the GNU General Public License as published   *
 * by the Free Software Foundation. This program is distributed in the hope   *
 * that it will be useful, but WITHOUT ANY WARRANTY; without even the implied *
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.           *
 * See the GNU General Public License for more details.                       *
 * You should have received a copy of the GNU General Public License along    *
 * with this program; if not, write to the Free Software Foundation, Inc.,    *
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.                     *
 * For the text or an alternative of this public license, you may reach us    *
 * ComPiere, Inc., 2620 Augustine Dr. #245, Santa Clara, CA 95054, USA        *
 * or via info@compiere.org or http://www.compiere.org/license.html           *
 *****************************************************************************/
package org.compiere.grid.tree;

import java.util.logging.Level;

import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.TreeNode;

import org.compiere.model.MTable;
import org.compiere.model.MTree;
import org.compiere.model.MTreeNode;
import org.compiere.model.PO;
import org.compiere.util.CLogger;
import org.compiere.util.Env;
import org.compiere.util.Trx;

/**
 *  AdempiereTreeModel provides a persistable tree model based on an MTree.
 *
 *  @author 	phib  2008/07/30
 *  FR [ 2032092 ] Java 6 improvements to tree drag and drop
 */
public class AdempiereTreeModel extends DefaultTreeModel {
	
	/**
	 * 
	 */
	private static final long serialVersionUID = 8503954687681402088L;

	/**	Logger			*/
	private static CLogger log = CLogger.getCLogger(AdempiereTreeModel.class);

	private MTree m_MTree;
	public AdempiereTreeModel(TreeNode root) {
		super(root);
	}

	public AdempiereTreeModel(MTreeNode root, boolean b) {
		super(root, b);
	}

	public void setMTree(MTree tree) {
		
		m_MTree = tree;
		
	}
	
	public void saveChangedNodes(MTreeNode from, MTreeNode to) {
		int AD_Tree_ID = m_MTree.getAD_Tree_ID();
		Trx trx = Trx.get (Trx.createTrxName("AdempiereTreeModel"), true);
		try
		{
			int noSecond = 0;
			int seqno = 0;
			
			int no = 0;
			for (int i = 0; i < from.getChildCount(); i++)
			{
				MTreeNode nd = (MTreeNode)to.getChildAt(i);
				if(from.getNode_ID() == nd.getNode_ID())
					noSecond ++;
				
				if(noSecond == 2 && from.getNode_ID() == nd.getNode_ID()){
//					i--;
					
					continue;
				}
				else 
					seqno++;
				
				String whereClause = "AD_Tree_ID="+AD_Tree_ID+ " AND Node_ID=" + nd.getNode_ID();
				PO tree = MTable.get(Env.getCtx(), m_MTree.getNodeTableName()).getPO(whereClause, trx.getTrxName());
				int ir = to.getNode_ID();
				tree.set_CustomColumn("Parent_ID", to.getNode_ID());
				tree.set_CustomColumn("SeqNo", (seqno));				
//				MTreeNode nd = (MTreeNode)from.getChildAt(i);
//				String whereClause = "AD_Tree_ID="+AD_Tree_ID+ " AND Node_ID=" + nd.getNode_ID();
//				PO tree = MTable.get(Env.getCtx(), m_MTree.getNodeTableName()).getPO(whereClause, trx.getTrxName());
//				tree.set_CustomColumn("Parent_ID", from.getNode_ID());
//				tree.set_CustomColumn("SeqNo", i);
//				tree.saveEx();
			}
			
			noSecond = 0;
			seqno = 0;
//			System.out.println();
			
			if (from != to)
				for (int i = 0; i < to.getChildCount(); i++)
				{
					
					MTreeNode nd = (MTreeNode)to.getChildAt(i);
					if(from.getNode_ID() == nd.getNode_ID())
						noSecond ++;
					
					if(noSecond == 2 && from.getNode_ID() == nd.getNode_ID()){
//						i--;
						
						continue;
					}
					else 
						seqno++;
					
					String whereClause = "AD_Tree_ID="+AD_Tree_ID+ " AND Node_ID=" + nd.getNode_ID();
					PO tree = MTable.get(Env.getCtx(), m_MTree.getNodeTableName()).getPO(whereClause, trx.getTrxName());
					int ir = to.getNode_ID();
					tree.set_CustomColumn("Parent_ID", to.getNode_ID());
					tree.set_CustomColumn("SeqNo", (seqno));
//					System.out.println("from.getNode_ID(): " + from.getNode_ID() + ", node_id: " + nd.getNode_ID() +  ", prevseqno: " + (nd.getSeqNo()) + ", seqno: " + (seqno));
					tree.saveEx();
				}
			trx.commit(true);
		}
		catch (Exception e)
		{
			trx.rollback();
			log.log(Level.SEVERE, "move", e);
		}
		trx.close();
		trx = null;
		log.config("complete");
		
	}

	
}
